Electronics > Projects, Designs, and Technical Stuff

Need help identifying a component (pic attached)

(1/3) > >>

Casper The Ghoul:
First time posting on the forum, so I have no idea if this is the correct section for a post like this, so my bad if it isn't.
My family's old Samsung LCD flatscreen TV from 2007 finally gave out on us (busted relay), so we decided to get a more modern TV, and I was allowed to scrap the old one for parts.
The parts inside were your standard affair, Mosfets for driving plasma screens, high wattage resistors, what have you.
But there's one that's been bugging me for a while because I can't figure out what it is.
As you can see in the attached image, it's enclosed in glass and is about the same diameter as a 1/4" audio jack.
The labels on the glass are 452, 0, and 9H.
Inside are two parallel leads in an H shape with a small plastic tab holding the leads apart.
I think it might be a halogen light bulb, but I don't work frequently enough with them to recognize every type, and I've never seen one exactly like this.
Thanks in advance.
(Edit: Corrected image orientation)

bob91343:
In what section of the unit was this?  It could be a glow lamp or a thermal cutout.  Have measured its resistance?

free_electron:
Thats a gas discharge surge arrester.

overvoltage protection. it flashes over at a certain voltage,

bob91343:
Judging from its size, it won't eliminate surges of very high energy.

Casper The Ghoul:

--- Quote from: bob91343 on May 20, 2019, 09:33:07 pm ---In what section of the unit was this?  It could be a glow lamp or a thermal cutout.  Have measured its resistance?

--- End quote ---
It was in the power supply section. I didn't see much of a point in measuring because I did a continuity test with my multimeter and didn't get a reading. I can't insert images directly into posts from a chromebook, so I'll just attach a pic of the circuit board. The part where it was soldered is labeled RY801S.

--- Quote from: free_electron on May 20, 2019, 09:42:53 pm ---Thats a gas discharge surge arrester.

overvoltage protection. it flashes over at a certain voltage,


--- End quote ---

I had a feeling it might have been for some form of voltage protection, thanks for confirming. Is there any way I can determine the voltage rating from the labeling, or would I just have to put it in a circuit and increase the voltage until it discharges?

Navigation

[0] Message Index

[#] Next page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod